Synthesis of Fused Polynuclear Systems Based on Phthalocyanine and Triazolehemiporphyrazine Units

Abstract

<jats:p> Unsymmetrically substituted binuclear phthalocyanine derivatives 8 and 9 have been synthesized by mixed condensation of nickel(II) dicyanophthalocyanine 6 with dioctyloxyphthalonitrile 7 in the presence of either nickel(II) or zinc(II) chloride. In addition, a heterotrinuclear phthalocyanine–triazolehemiporphyrazine–phthalocyanine complex 16 has been obtained using the methodology described earlier for the preparation of heterobinuclear phthalocyanine–triazolehemiporphyrazine systems (13a–13e). All these compounds exhibit in their UV-vis spectra broad and split Q bands that are shifted to the near-IR in comparison with mononuclear phthalocyanines as a consequence of the enlargement of the π conjugation. </jats:p>

Effect of anchoring groups in zinc phthalocyanine on the dye-sensitized solar cell performance and stability

“…Phthalocyanine 2 was prepared by metallation of free base phthalocyanine 1 22 using ZnCl 2 and DBU as a base, in a 63% yield, after chromatographic purification (Scheme 1). On the other hand, dicarboxylic acid phthalocyanine TT9 was synthesized by hydrolysis of 2 as depicted in Scheme 1 in a 54% yield after chromatographic purification on a reverse stationary phase using a mixture of THF-H 2 O (2 : 1) as eluent.…”

A voyage into the synthesis and photophysics of homo- and heterobinuclear ensembles of phthalocyanines and porphyrins

“…However, to synthesize fused heterobinuclear or heterodimetallic Pc systems, a multistep procedure involving the former preparation of an unsymmetrically substituted mononuclear Pc holding two cyano moieties in an ortho substitution pattern was formerly developed by the group of Torres (see Scheme 4). 66,67 A more recent example of the latter approach is shown in Scheme 4. 64 The prepared dicyano-substituted intermediate 11 reacts with a selected phthalonitrile to yield binuclear compound 12.…”

Theoretical insight into photo-induced intramolecular electron transfer in heterodinuclear Ru(II)–Co(III) complexes

“…The optimized geometry parameters of Ru(II)eCo(III) complexes in MeCN solution are listed in Table S1 (Supporting Information). The introduction of (Z)-N-(1H-isoindol-1-ylidene)-2H-isoindol-1-amine [23,24] …”